MESON Chess Problem Database

Problem Display
PID: 16913 (K4B1n/6R1/2Q1P2k/8/8/5n2/8/2bB3b w - - 0 1)

Wenman, Francis Percival (aka Percy Wenman)

One Hundred Published Problems, 1944

K4B1n/6R1/2Q1P2k/8/8/5n2/8/2bB3b

#2

6 + 5

5454 Near Snap 2013

SOLUTION

  • SOUND
  • Sets
    • 1...Se1
      • 2.Qxh1#
    • 1...Sd2
      • 2.Qxh1#
    • 1...Sd4
      • 2.Qxh1#
    • 1...Se5
      • 2.Qxh1#
  • Tries
    • 1.Qe4?
      • threat
        • 2.Qh7#
      • 1...Sg6
        • 2.Qxg6#
      • 1...Se1
        • 2.Rg1#
        • 2.Rg2#
        • 2.Rg3#
        • 2.Rg8#
        • 2.Qxh1#
      • 1...Sg1
        • 2.Rxg1#
        • 2.Rg2#
        • 2.Rg3#
        • 2.Rg8#
      • 1...Sd2
        • 2.Rg1#
        • 2.Rg2#
        • 2.Rg3#
        • 2.Rg8#
        • 2.Qxh1#
      • 1...Sh2
        • 2.Rg1#
        • 2.Rg2#
        • 2.Rg3#
        • 2.Rg8#
      • 1...Sd4
        • 2.Rg1#
        • 2.Rg2#
        • 2.Rg3#
        • 2.Rg8#
        • 2.Qxh1#
      • 1...Sh4
        • 2.Rg1#
        • 2.Rg2#
        • 2.Rg3#
        • 2.Rg8#
      • 1...Se5
        • 2.Rg1#
        • 2.Rg2#
        • 2.Rg3#
        • 2.Rg8#
        • 2.Qxh1#
      • 1...Sg5
        • 2.Ra7#
        • 2.Rb7#
        • 2.Rc7#
        • 2.Rd7#
        • 2.Re7#
        • 2.Rf7#
        • 2.Rh7#
        • 2.Rg8#
      • 1...Kh5!
    • 1.e7+?
      • 1...Sg6
        • 2.Qxg6#
      • 1...Kh5!
  • Keys
    • 1.Qc2!
      • threat
        • 2.Qh7#
      • 1...Se1+
        • 2.Rg2#
      • 1...Sg1+
        • 2.Rg2#
      • 1...Sd2+
        • 2.Rg2#
      • 1...Sh2+
        • 2.Rg2#
      • 1...Sd4+
        • 2.Rg2#
      • 1...Sh4+
        • 2.Rg2#
      • 1...Se5+
        • 2.Rg2#
      • 1...Sg5+
        • 2.Rb7#
      • 1...Kh5
        • 2.Qh2#
      • 1...Sg6
        • 2.Qxg6#

Anticipated by 21324(1918)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 4
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
    • S(c);OGATE,P_PINQ(B)::QAR(B),XB(b)
  • Tries
    • Try
      • Q(B);
      • Threat
        • QAR1(B)
      • Vars
        • S(e);N_GUARD::QAR1(B),XS(e)
      • Refutation
        • K(d);P-FLIGHT,P_SPINS(c)
    • Try
      • P(C);CHECK
      • Vars
        • S(e);N_GUARD,P_SPINS(e)::QAR1(B),XS(e)
      • Refutation
        • K(d);P-FLIGHT,P_SPINS(c)
  • Actual
    • Q(B);
    • Threat
      • QAR1(B)
    • Vars
      • S(c);CHECK::B(F)+R(D)
      • S(c);CHECK,SBLOCK::B(F)+R(D)
      • K(d);P-FLIGHT,P_SPINS(c)::QAR(B)
      • S(e);N_GUARD::QAR1(B),XS(e)
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